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-rw-r--r--doc/primary-expression.txt8
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/primary-expression.txt b/doc/primary-expression.txt
index a964ce92..d819b24c 100644
--- a/doc/primary-expression.txt
+++ b/doc/primary-expression.txt
@@ -4,7 +4,7 @@ META EXPRESSIONS
*meta* {length | nfproto | l4proto | protocol | priority}
[meta] {mark | iif | iifname | iiftype | oif | oifname | oiftype |
skuid | skgid | nftrace | rtclassid | ibrname | obrname | pkttype | cpu
-| iifgroup | oifgroup | cgroup | random | ipsec}
+| iifgroup | oifgroup | cgroup | random | ipsec | iifkind | oifkind}
A meta expression refers to meta data associated with a packet.
@@ -114,6 +114,10 @@ integer (32 bit)
|ipsec|
boolean|
boolean (1 bit)
+|iifkind|
+Input interface kind |
+|oifkind|
+Output interface kind
|====================
.Meta expression specific types
@@ -137,6 +141,8 @@ Device group (32 bit number). Can be specified numerically or as symbolic name d
|pkt_type|
Packet type: *host* (addressed to local host), *broadcast* (to all),
*multicast* (to group), *other* (addressed to another host).
+|ifkind|
+Interface kind (16 byte string). Does not have to exist.
|=============================
.Using meta expressions